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Correction for neutron induced reaction interferences in the NAA k0-standardization method

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Abstract

A study is made of the correction, in k0-standardized NAA, for interferences caused by fast neutron induced threshold reactions, second order reactions and235U-fission. The following examples are elaborated: determination of the Cr and Sc concentrations in a reference human serum, corrected for the54Fe(n,α)51Cr and44Ca(n,γ;β−; n,γ)46Sc interferences, respectively, and the determination of Zr, Cs, La, Ce, Nd and Sm concentrations in USGS BCR-1 and G-2, corrected for235U(n, f) interference. A detailed uncertainty analysis and a comparison of the analytical results thus obtained with other literature values proves that the interferences can be accurately corrected for by employing the usual neutron flux monitors in the k0-method, namely a Zr-foil and a dilute Au−Al alloyed wire.

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Author notes

  1. Lin Xilei

    Present address: General Research Institute for Non-Ferrous Metals, Beijing, (China)

Authors and Affiliations

  1. Institute for Nuclear Sciences, Proeftuinstraat 86, B-9000, Gent, (Belgium)

    Lin Xilei, D. Van Renterghem, F. De Corte (Senior research associate of the National Fund for Scientific Research) & R. Cornelis (Research director of the National Fund for Scientific Research)

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  1. Lin Xilei
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  2. D. Van Renterghem
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  3. F. De Corte
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  4. R. Cornelis
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Xilei, L., Van Renterghem, D., De Corte, F. et al. Correction for neutron induced reaction interferences in the NAA k0-standardization method. Journal of Radioanalytical and Nuclear Chemistry, Articles 133, 153–165 (1989). https://doi.org/10.1007/BF02039972

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  • DOI: https://doi.org/10.1007/BF02039972

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